What is the value of the expression below when x=9 ? x^(2)+5x-2 Answer:

Substitute x=9: Substitute x=9 into the expression x^(2) + 5x - 2. Calculation: 9^(2) + 5*9 - 2Calculate square of 9: Calculate the square of 9. Calculation: 9^(2) = 81Multiply 5 by 9: Multiply 5 by 9. Calculation: 5*9 = 45Add and subtract: Add the results from the square of 9 and the multiplication of 5 by 9, then subtract 2. Calculation: 81 + 45 - 2Perform final calculations: Perform the addition and subtraction. Calculation: 81 + 45 = 126; 126 - 2 = 124

Resources

Testimonials

Plans

Resources

Testimonials

Plans

AI tutor

Welcome to Bytelearn!

Let’s check out your problem:

What is the value of the expression below when
x=9 ?

x^(2)+5x-2
Answer:

What is the value of the expression below when $x=9$ ? $\newline$ $x^{2}+5 x-2$ $\newline$ Answer:

View step-by-step help

Home

Math Problems

Algebra 1

Evaluate rational expressions

Full solution

Q. What is the value of the expression below when

x=9

\newline

x^{2}+5 x-2

\newline

Answer:

Substitute $x=9$ : Substitute $x=9$ into the expression $x^{2} + 5x - 2$ . $\newline$ Calculation: $9^{2} + 5\cdot9 - 2$
Calculate square of $9$ : Calculate the square of $9$ . $\newline$ Calculation: $9^{2} = 81$
Multiply $5$ by $9$ : Multiply $5$ by $9$ . $\newline$ Calculation: $5\times9 = 45$
Add and subtract: Add the results from the square of $9$ and the multiplication of $5$ by $9$ , then subtract $2$ . $\newline$ Calculation: $81 + 45 - 2$
Perform final calculations: Perform the addition and subtraction. $\newline$ Calculation: $81 + 45 = 126$ ; $126 - 2 = 124$